139968100

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{277}}^1$

素因数の和:485

約数の個数: 72

約数和(自身を含む): 316590848

約数和(自身を除く): 176622748

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 163, 277, 310, 326, 554, 620, 652, 775, 815, 1108, 1385, 1550, 1630, 2770, 3100, 3260, 4075, 5053, 5540, 6925, 8150, 8587, 10106, 13850, 16300, 17174, 20212, 25265, 27700, 34348, 42935, 45151, 50530, 85870, 90302, 101060, 126325, 171740, 180604, 214675, 225755, 252650, 429350, 451510, 505300, 858700, 903020, 1128775, 1399681, 2257550, 2799362, 4515100, 5598724, 6998405, 13996810, 27993620, 34992025, 69984050, 139968100]

約数ペア:

[(1, 139968100), (2, 69984050), (4, 34992025), (5, 27993620), (10, 13996810), (20, 6998405), (25, 5598724), (31, 4515100), (50, 2799362), (62, 2257550), (100, 1399681), (124, 1128775), (155, 903020), (163, 858700), (277, 505300), (310, 451510), (326, 429350), (554, 252650), (620, 225755), (652, 214675), (775, 180604), (815, 171740), (1108, 126325), (1385, 101060), (1550, 90302), (1630, 85870), (2770, 50530), (3100, 45151), (3260, 42935), (4075, 34348), (5053, 27700), (5540, 25265), (6925, 20212), (8150, 17174), (8587, 16300), (10106, 13850)]